Geopolymer concrete

1. TENTATIVE RESEARCH TOPIC
Mechanical and Durability Properties of Hybrid Fiber Reinforced
Self-Compacted Ambient-Cured Geopolymer Concrete
Presenting By
Civil Engineering.

2. INTRODUCTION
 Cementitious concrete is the fundamental foundation of the modernizing globe
and unequivocally one of the most synthetic utilized materials in the building
sector.
 By 2050, cement production is anticipated to increase by 12–23% due to
urbanization and infrastructure expansion, which will consequently increase CO2
emissions by 4%.
 The World Green Building Council (World GBCs) urges the construction sector to
adopt sustainable construction materials to approach decarbonisation by 2050.
 Geopolymer concrete is synthesized by mixing chemical alkaline solutions such
as sodium hydroxide and sodium silicate with by-products, including fly ash,
slag, rice husk ash, metakaolin, etc.
 Hurdles in GPC:- Curing, Efflorescence, Shrinkage Cracking, Etc,.

3. Sl.No. TITLE AUTHORS SUMMERY
1.
Influence of Discrete
Basalt Fibres on Shrinkage
Cracking of Self-
Compacting Ambient-
Cured Geopolymer
Concrete.
Mohamed
Heweidak ,
Bidur Kafle
and Riyadh Al-
Ameri (2023)
The study aims to investigate the influence of short (12
mm), long (30 mm) and hybrid-length (1:3 (short/long)) BFs
with 1%, 1.5% and 2% dosages on the drying shrinkage
properties and plastic shrinkage cracking of SCGC.
The study results showed that adding BFs to SCGC reduces
the drying shrinkage rates compared to plain SCGC, and
SCGC reinforced with a 2% dosage of hybrid-length BFs
recorded the lowest drying shrinkage rate.
2.
Influence of Hybrid Basalt
Fibres’ Length on Fresh
and Mechanical Properties
of Self-Compacted
Ambient-Cured
Geopolymer Concrete
Mohamed
Heweidak,
Bidur Kafle
and Riyadh Al-
Ameri (2022)
In this study, a hybrid length of long and short basalt fibres
with different weight contents were investigated to reap the
benefits of multi-scale characteristics of a single fibre type.
The results indicate that the hybridization of long and short
fibres in SCGC mixture yields better mechanical properties
than single length BF-reinforced SCGC.
3.
Fresh and mechanical
characterization of fly
ash/slag by incorporating
steel fiber in self-
compacted geopolymer
concrete.
Abhay V.
Nakum &
N.K. Arora
(2023)
The experimental investigation used steel fibers volume
fractions of 0%, 0.5%, and 1% (by concrete volume) and
fluid to binder ratios of 0.6, 0.7, and 0.8.
Workability is improved by increasing the alkaline solution
to fly ash ratio, but compressive and tensile strength are
reduced. A balance is observed in workability and
mechanical property at alkaline solution to fly ash ratio of 0.6
and 0.7 for SCFRGPC.
4.
Hybrid effect of carbon
nanotubes and basalt fibers
on mechanical, durability,
and microstructure properties
of lightweight geopolymer
concretes
Meysam
Bagheripour
Asil & Malek
Mohammad
Ranjbar (2022)
In this research, a combination of basalt fibers (BFs) and
carbon nanotubes (CNTs) were used to improve the
engineering attributes of lightweight geopolymer concrete.
The combined use of CNTs and BFs increases the
compressive and splitting tensile strength by 32.2% and
43.7%, respectively.

4. TENTATIVE OBJECTIVES OF THE RESEARCH
 The main objective of the work is to develop the self-
compacted hybrid fibre-reinforced geopolymer concrete
(SCHFGPC) using Combination of hybrid fibre like Basalt
Fibre (BF) and Jute Fibre (JF).
 To know the performance of the self compacting geopolymer
concrete for the flow properties and the strength properties by
Varying the Fiber % of BF and JF.
 To find the Drying Shrinkage and Plastic Shrinkage Properties
of the SCHFGPC by Varying the Fiber % of BF and JF.

5. REFERENCES
1. Mohamed Heweidak , Bidur Kafle and Riyadh Al-Ameri, “Influence of Discrete Basalt Fibres on
Shrinkage Cracking of Self-Compacting Ambient-Cured Geopolymer Concrete”, Journal of Composite
Science, 2023, 7, 202.
2. Mohamed Heweidak, Bidur Kafle and Riyadh Al-Ameri, “Influence of Hybrid Basalt Fibres’ Length on
Fresh and Mechanical Properties of Self-Compacted Ambient-Cured Geopolymer Concrete” Journal of
Composite Science, 2022, 6, 292.
3. Abhay V. Nakum & N.K. Arora, “Fresh and mechanical characterization of fly ash/slag by incorporating
steel fiber in self-compacted geopolymer concrete” Construction and Building Materials , Volume 368, 3
March 2023, 130481.
4. Meysam Bagheripour Asil & Malek Mohammad Ranjbar, “Hybrid effect of carbon nanotubes and basalt
fibers on mechanical, durability, and microstructure properties of lightweight geopolymer concretes”,
Construction and Building Materials Volume 357, 28 November 2022, 129352.
5. J. Davidovits, Soft Mineralurgy and Geopolymers, in: Proceeding of Geopolymer, 1988.
6. Al-Ghazali Noor Abbas a, Farah Nora Aznieta Abdul Aziz, Khalina Abdan , Noor Azline Mohd Nasir ,
Ghasan Fahim Huseien, “Experimental study on durability properties of kenaf fibre-reinforced
geopolymer concrete ”, Construction and Building Materials 396 (2023).
7. V. Sathish Kumar, N. Ganesan and P. V. Indira, “Engineering Properties of Hybrid Fibre Reinforced
Ternary Blend Geopolymer Concrete” , Journal of Composite Science (2021)”
8. Mahapara Abbass , Digvijay Singh, Gyanendra Singh, “Properties of hybrid geopolymer concrete
prepared using rice husk ash, fly ash and GGBS with coconut fiber” (2021).
9. Rangan, B.V. Mix design and production of fly ash based geopolymer concrete. Indian Concr. J. 2008,
82, 7–15.